The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 1999
Filed:
Jul. 22, 1997
Stephen Cecil Grigory, San Antonio, TX (US);
Jesse Abergo Villarreal, San Antonio, TX (US);
Jeffrey Gene Wright, Bulverde, TX (US);
Donald Wade Johnson, San Antonio, TX (US);
Gas Reasearch Institute, Chicago, IL (US);
Abstract
A pipe sealing system comprising an insertion tool and a seal apparatus for providing sealing to a damaged pipe. The sealing apparatus includes a cover member and a tool attachment member. The insertion tool includes a handle having an outer tube and an inner shaft slidably positioned within the outer tube. Additionally, the insertion tool includes an attachment region associated with the inner shaft for releasably attaching the tool attachment member to the insertion tool. The attachment region enables releasable controlled positioning of the cover member within the outer tube of the handle. The invention further includes a method for repairing damaged pipes.